Administrative overview · FIPS 55109
St. Croix County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
County
This county profile is the primary starting point for unincorporated-area permitting.
Responsible agency
St. Croix County Community Development Department
For a project in or near St. Croix County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
715-386-4680
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
St. Croix County Government Center, 1101 Carmichael Road, Suite 1300, Hudson, WI 54016
Operating hours
Monday-Friday, 8:00 AM-4:30 PM Central
Review expectation
For a complete application and supporting documents, the Zoning Administrator will prepare approval or denial findings within 60 days.
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Frequently asked questions for St. Croix County
Who handles permitting for this jurisdiction?
St. Croix County Community Development Department is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
How should I begin an application?
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 715-386-4680.
How long might review take?
For a complete application and supporting documents, the Zoning Administrator will prepare approval or denial findings within 60 days.
How are inspections scheduled?
Book county sanitary inspections and office appointments through the online appointment portal or call 715-386-4680. For a land-use application, county staff conduct a site visit and the applicant must flag and label applicable property/project corners. Schedule UDC, building and trade inspections separately with the inspector serving the applicable town or municipality.
Which codes and exemptions should I review?
St. Croix County administers Chapter 15 general zoning in all unincorporated towns except Forest, Hudson, St. Joseph and Troy, plus countywide-township shoreland, floodplain, land-division, Lower St. Croix Riverway and sanitary/POWTS regulations. Cities, villages and the four excluded towns enforce their own general zoning. Building permits, Wisconsin UDC and construction/trade inspections are handled by the applicable town or municipality. Uses classified as Permitted by Right in §15.285 do not need a county land-use permit unless an overlay or another ordinance requires approval; changing only the message on an existing sign is expressly permit-exempt. Applicants should confirm project-specific exemptions because shoreland, riverway and floodplain overlays can independently require county review.